Lint condenser



May 1 F. w. PROVOST ET AL LINT CONDENSER Filed May 11. 1925 4 Sheets-Sheet Snuento i 1,628,065 M y 1927- F. w. PROVOST ET AL v LINT CONDENSER Fileq May 11. 1925 4 Sheets-Sheet 2 1,628,065 May 1927' F. w. PRovosT ET AL LINT CONDENSER Filed May 11. 1925 4 sneetsL-sheet I a May 10, 1927.

F. W. PRQVOST ET AL LINT CONDENSER Filed May 11. 1925 4 Sheets-Sheet 4 Mil-2 Patented May 13, 1927.

UNITED STATES.

I 1,528,065 PATENT oFFicE...

FRANK W. IROVOST AND GEORGE B. HAYWOOD, OF HOUSTON, TEXAS.

1.1m: CONDENSER.

Application filed May 11,

Our invention relates to condensers for re ceiving cotton lint from delinting machines and forming it into a thin layer or bat so that it maybe used.

It has been customary in delinting devices to receive the lintt'rom the machines upon a single cylinder without making any provi-- sion for the discharge of the air passing through the device. The result has been an inefiicientdevice requiring services of one or more attendants. Another objection is the escape oi the dust and dirt into the air so that the operators are compelled to work in an atmosphere of dust and lint.

It is an. object of our invention to provide a condenser in which the lint is received directly from the delinting machines to the condenser, and the air passing through the suction device is discharged out of the building. It is also an object to provide an ellicient screening area in the condenser so that all of the lint may be recovered in passing through the condenser and thus saved. It is also desired that. a maximum screening surface be provided.

It is another object to provide an effective means for removing the lint from the screening cylinders in a smooth compact layer so that it may be most efiiciently handled thereafter.

The invention also consists in certain details of construction and arrangement of the parts which will be set forth in detail in the specification which follows.

Referringto the drawing herewith, Fig. l is a central vertical sectionthrough the con denser embodying. the invention. Fig. 2 is a vertical section on the line 22 of Fig. 1. Fig. 3 is a side elevation of the device. Fig. 4 is a similar elevation from the opposite side of the machine showing the suction chamber removed, and Fig. 5 is a rear elevation showing the connection thereof with the suction device. Like numerals of reference are employed to designate like parts in all the views.

The device consists of. a housing 1, preterably made of sheet iron and shaped to ethciently housetwo parallel screening cylinders 2 and 3. The housing is provided on the forward side with a tubular opening 4-, by means of wh'eh it may be connected to a line, or pipe, leading tothe various deli-nti'ng machines from whichthe lint is'received. This lint is drawn from the delinting devices to the condenser by means of a suction tan,

1925. Serial No. 29,432.

shown at 5 in Fig. 5. The suction tan is connected by means of a flue 6 and branching pipes '7 to the opposite ends of theztwo cylinders. There is,.hence,. a draught of air carrying, the lint from the delinting ma.- chines through the opening 4 upon. the cylinders, the air passing out through the ends of the cylinders at the side of the housing; to.

and is then discharged the suction device the outside of the through the pipe 8 to building.

The cylinders 2 are mounted uponv transverse shafts 9 and 10, supporting the upper and lower cylinders respectively. The said sharts are mounted in supporting brackets it at one end and these shafts are squared at their ends to it within said brackets and are thus held against rotation in said supports. The cylinders are mounted upon bearing sleeves 12 at their ends; the said sleeves are adapted to rotate upon their respective shafts and are secured at their inner ends 14% to the ends of the cylinders. projects beyond the support 15 and has fixed thereon a pulley 16 by means of which the sleeve may be rotated on the shalt, thus rotating the cylinder.

The construction of the two cylinders and their mounting is practically identical. Each cylinder comprises a-trame made up of a spider 17 at each end, consisting of a central hub and radial spokes connecting the same with a rim 18, said rim has an outwardly extending flange l9 thereon. The rims are connected by longitudinal bars, or rods, 20, which may be supported midway between their ends by a hoop, or band, 21'. The outer surface oi the cylinc er is made up of a i-oraminated covering 22, preferably of woven wire or screen.

The tlues 7, which draw the air through the condenser, are connected at each side of the machine with an air chamber 23, which is flattened out somewhat to fit against the side of the housing and extends down between the lateral supports 24, forming the framework, and the housing. This construction is shown in Fig. '2. The said chamber is preferably formed in two parts divided at 25, as shown in Fig. 8, to enclose the adjacent upper shaft 9. The lower por tion of the air chamber is inclined laterally to fit about one side of the lower shait 10.; it extends below said shaft and is shaped to cover an arcuate opening, shown at 26, in

Each sleeve 1'3' the side of the housing immediately adj aeent the end of the lower cylinder. The inner sides of the chamber 2 3 are formed with openings therein to interlit with. openii of the sides of the housi'z'ig at the ends or the cylinders. lhe housing is therefore formed with. outwardly extending rims 27, about the openings at the ends of the cylinders, and the air chamters have inwardly extend flanges 28 telescoping over said flange: so as to form an approximatcly airtight lit between the parts.

The openings in the ends of the cylinder walls are made to correspond to the portion of the cylinder which is intended to form the screening area. It is desired that a certain restricted area upon each cylinder shall be cut olf from the suction of the air so that when the cotton reaches this portion of the housing the cotton may be removed from the screen. In the upper cylinder 2 there is placed upon the shaft 9 an approximately triangular bracket 30. This brac :et is fitted about the shaft 9 and held in position thereon by a set screw 3i. it is contemplated that there shall be at lez'rst two of these brackets, one at each end of the cylinder. They are adapted to sugiiport a battle, or shield. which extends approximately radially outward from the shaft to the in terior of the cylinder, and the ends of the two walls 32 are connected by in, arcuatc wall 33. This battle, or shield, ciitends the full length of the cylinder and the area of the cylinder passing this cut o'tf shield, or halite, is thereby not exposed to the suction from the fan.

In the lower cylinder the brackets 23%, which are mounted upon the shaft 10, are of different shape so as to accommodate a baffle. or shield 32, which is intended to shield a larger area of the lower cylinder than is done in the upper cylinder. The construction of a wall 33 is the same as in case of the upper shield, or baffle, except. that it is of larger extent.

It will thus be noted that when the suction is exerted by the fan the draught of air will be caused to circulate inwardly through the opening l and against the screen area presented toward the opening, and in case of the upper cylinder the screen area will extend also over the upper portion of the screen as well. There will be. however, a restricted area protected by the wall 33 of the battle, which will be cut off from the suction and thereby tend to release the cotton from the cylinder.

In the lower cylinder. the screening area is not as great but it will be noted that the suction is exerted upon the screen surface to a point rearwardly from the wall 32 of the upper cylinder so that if the cotton adheres to the screen of the upper cylinder after it has passed the wall of the. baffle. the suction passing through the screen surface of the lower cylinder will tend to draw the cotton from the upper cylinder.

To assist in removing the cotton from the two cylinders. we proi'ide a wiper roll 35. This roll is of the same length as the cylinders and is mounted upon a shaft 36 which is journaled at; its ends in arms 37. These arms are lined to shafts 38. journaled in the walls of the housing and towing on their outer ends arms 39 extending lorwariflly and having at their other ends bpenings 4:0 for attaclnmnt to tension springs ll, secured at 42 to the housing and tending to draw the arms 39 downwardly and thus hold the roller 35 agai st the upper surface of the lower cylinder 3 at a point adjacent the up per battle 32 thereof.

In the operation of tl'iis device, the suction caused by the fan will draw the lint through in the housing against the the opening l: cylinders and The lint will be en gaged upon the screen of the cylinders and the air with dust therein will be drawn through the open ngs in the ends of the housing adjacent the cylinders and carried off through the tines 6 and 7 to be dis charged.

The cylinders are arranged for rotation in opposite diruttions, the upper one in a clockwise direction and the lower one in a coimter-clockwise direction. he cotton will thus be carried between the cylinders and that upon the upper cylinder *ill be engaged by the roll 35 and carried downwardly against the upper face of the cylinder 3. The layer of cotton upon the lower cylinder will therefore include the cotton received from the upper cylinder, and this double layer will be loosened from the lower cylinder and carried to the rear at the point where the suction is cut oil from the screen by the balfle 32. It will therefore be discharged in a uniform layer, or hat, on to the floor of the housing to the rear of the cylinders where it may be removed. It Will be noted that the roll is caused to rotate by its resilient contact with the lower cylinder 3; its upper surface will be moving in a direction opposite to that of the surface of the screen on the upper cylinder and will therefore tend to wipe the cotton from the cylinder in a most efficient manner. Fur thermore, the draft into the housing due to the suction through the cylinders will cause a draft. inwardly above the wiper roll that will help carry the hat of lint on to the roll and thus materially assist in carrying the cotton away from the cylinders. Its pressure upon the lower screen will be sufficient to cause the cotton to be compressed and moved by the roll away from the cylinder so that it can be discharged.

It is contemplated that one condenser of this type may handle the cotton from a large battery of delinting machines; it will lit) lit)

handle the cotton from one, or any other number up to 16 or more. The cotton thus discharged to the cylinders 2 and 3 will be received upon a maximum screening surface. Only such portion of the screen area will be cut oil? from the suction as is necessary to cause the efficient renioval of the cotton from the screen. There will be no discharge of dust or lint into the room in which the operators are working and all of the lint will be saved for use. The further advantage of this device will be obvious to those skilled in the art. hat we claim to be new and protect by Letters Patent is:

1. In a cotton condenser, a housing having a cotton receiving opening at one side thereof, spaced parallel shafts fixed against rotation in said housing, for-aininated cylinders rotatable in contact with each other on said shafts, brackets on said shafts within said cylinders, battles on said brackets extending along said cylinders on their sides away from said opening. a wiper roll contacting with the lower of said cylinders adjacent said baflies spaced slightly from said upper cylinder and rotating in the same direction as one of said cylinders, suction means at the ends of said cylinders, said baflles being positioned to extend on one cylinder in advance of the line of contact and in the other to the rear of said line, to

desire to allow said suction to be exerted upon a portion of the surface of the second nan'ied cylinder adjacent an obscured surface of the other in the manner described, said wiper roll being held resiliently in contact with and receiving the cotton from said second nained cylinder.

In a cotton condenser, a housing having a cotton receiving opening at one side thereof and an opposite outlet opening, upper and lower ioraminated cylinders rotatable on shafts mounted in said housing, means to create a suction into said cylinders, brackcts on' said shafts within said cylinders, shields on said bracketsto obscure limited areas on said cylinders from said suction, the shielded area on the upper cylinder overlapping the shielded area of the lower cylinder, a wiper roll rotatable in the same direction as said upper cylinder and spaced slightly therefrom and resiliently contacting with the outer side of said lower cylinder whereby suction from said cylinders will pass between said upper cylinder and said wiper roll to assist in clearing said upper cylinder of cotton lint in the manner described.

In testimony whereof we hereunto aflix our signatures this 6th day of May A. D.

FRANK W. PROVOST. GEORGE B. HAYWOOD. 

